Ring traveler for spinning machines



' y' E. s. KEMPTON 2,116,671 v RIM: TRAVELER FOR SPINNING MACHINES FiledMay 1, 1937 INVENTOR Edi/4rd Jana/e Kemp 78/7 1 ATTORNEYS Patented May3, 1938 UNITED STATES PATENT OFFICE RING TRAVELER FOR. SPINNING MACHINESEdward Samuel Kempton, Gastonia, N. 0.

Application May 1, 1937, Serial No. 140,256

4 Claims.

This invention relates to ring travelers for spinning machines.

Ring travelers when in operation on a spinning machine travel at averyfast rate of speed around 5 the ring and when sotraveling the travelerfloats or has practically no contact with the ring.

Various traveler cross sections have been proposed and used, such forinstance as round, flat and half-oval, that is oval on one side and flaton the other.

The invention has for its salient object to provide a traveler sodesigned as to cross section as to reduce the air resistance on thetraveler to a minimum. I

Another object of the invention is to provide a traveler having a crosssection so designed as to offset the pull of the yarn on the travelerand improve the balance thereof.

Another object of the invention is to provide a traveler having a crosssection so designed as to improve the balance of the traveler inoperation, thus causing the traveler to run in a true circle around thering instead of being ofl'set due to the pull of the yarn thereon.

Further objects of the invention will appear from the followingspecification taken in connection with the drawing which forms apart ofthis application, and in which I Fig. 1 is a sectional elevation of aring having mounted thereon a traveler constructed in accordance withthe invention;

Fig. 2 is a transverse sectional elevation taken substantially on line2-- 2 of Fig. 1; and

Fig. 3 is a sectional elevation showing a. slightly different crosssection from that shown in Fig. 2. p

In the embodiment of the invention illustrated in the drawing there isshown a traveler III which may be of any desired form or shape, and inthe form illustrated has hooks. and 12 formed on the ends thereoi. forembracing the spinning ring l3. The yarn Y is shown as leadingdownwardly to the traveler l0, passing under the traveler at l5 andbeing led to a bobbin or spool S.

reaches the traveler in substantially a vertical perpendicular positionand leaves the traveler in a substantially horizontal direction. Thisplaces an uneven tension against the traveler when the traveler isbalanced equally on both sides of a vertical plane passing through thelongitudinal center line of the traveler. This unequal tension causesthe traveler which moves around the ring at a very high rate of speed torun partially sidewise" instead of in a true circle. In order toovercome this condition the cross section of the traveler constructed inaccordance with the invention is so designed as to offset this unevenpull by so distributing the weight that the greater portion of theweight is disposed on In the usual construction of traveler the yarn oneside of the vertical plane mentioned, thus causing the traveler to runin a true circle free from friction against the ring.

In the embodiment of the invention shown in Fig. 3 the cross section ofthe traveler is ovoid or egg'shaped.

In the form of the invention shown in Fig. 2 the cross section is in theshape of a flattened ovoid having three flattened sides 20, 2| and 22,the sides 2| and 22 tapering toward each other at one end and beingconnected by a curved or rounded end portion 23.

It will be understood that the traveler for a regular twist runs in onedirection on the ring and for a reverse twist runs in the oppositedirection. The cross section for these two operations will be reversed-,i. e., the heavier side or edge will be at one side for the regulartwist traveler and at the other side or edge for the reverse twist. Inboth cases the weight will be greater for the trailing edge, in thedirection of travel, than for the advance edge.

By reason of the construction above described, a, much better balance ismaintained during the operation of the traveler, thus causing thetraveler to run in a true circle, eliminating friction between thetraveler and the ring and providing a construction which will have amuch longer life than the travelers now in general use. Furthermore,this type of traveler will produce yarns of higher quality on account ofthe decrease in friction between the yarn and the traveler.

Although certain specific embodiments of the invention have beenparticularly shown and described, it will be understood that theinvention is capable of modification and that changes in theconstruction and in the arrangement of the various cooperating parts maybe made without departing from the spirit or scope oi. the invention, asexpressed in the following claims.

What I claim is:

1. A ring traveler having an ovoid cross section, the largest end of theovoid being disposed at the trailing edge of the traveler.

2. A ring traveler having a cross section so designed that the weight ofthe portion of the traveler at the trailing side of the vertical centerline thereof will be greater than the weight on the other side of thecenter line.

3. A ring traveler having a flattened ovoid cross section, the largestend. of the ovoid being disposed at the trailing edge of the traveler.

4. A ring traveler having a cross section so designed that the weight ofthe portion of the traveler on the trailing edge thereof will be greaterthan the weight on the advance edge thereof.

EDWARD SAMUEL KEMPTON.

